Fixed test results to reflect range optimizer fixes

mysql-test/r/bdb.result:
  Fixed test results to reflect optimizer fixes

mysql-test/r/bdb.result

@@ -140,10 +140,10 @@ id	parent_id	level
 1015	102	2
 explain select level from t1 where level=1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	level	level	1	const	1	Using where; Using index
+1	SIMPLE	t1	ref	level	level	1	const	1	Using index
 explain select level,id from t1 where level=1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	level	level	1	const	1	Using where; Using index
+1	SIMPLE	t1	ref	level	level	1	const	1	Using index
 explain select level,id,parent_id from t1 where level=1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ref	level	level	1	const	1	Using where
@@ -625,7 +625,7 @@ id	parent_id	level
 1016	102	2
 explain select level from t1 where level=1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	level	level	1	const	1	Using where; Using index
+1	SIMPLE	t1	ref	level	level	1	const	1	Using index
 select level,id from t1 where level=1;
 level	id
 1	1004